Journal of Fuel Cell Science and Technology: Recent submissions
Now showing items 721-740 of 854
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Dynamic Model of 5kW SOFC CHP Test Station
(The American Society of Mechanical Engineers (ASME), 2007)A dynamical model for a 5kW class solid oxide fuel cell (SOFC) combined heat and power (CHP) test station has been composed using the APROS® environment. The model is based on a real ... -
Plasma Sprayed Diffusion Barrier Layers Based on Doped Perovskite-Type LaCrO3 at Substrate-Anode Interface in Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2007)In the thin-film solid oxide fuel cell (SOFC) concept of the German Aerospace Center (DLR) in Stuttgart, the entire membrane electrode assembly (MEA) is deposited onto a porous metallic substrate ... -
Development of Solid Oxide Fuel Cells and Short Stacks for Mobile Application
(The American Society of Mechanical Engineers (ASME), 2007)At the German Aerospace Center (DLR) in Stuttgart, a lightweight stack design for mobile applications was developed in cooperation with the automotive industry (BMW, Munich; Elring-Klinger, ... -
Systematic Experimental Analysis of a Direct Methanol Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2007)Different studies are carried out to compare the performances of different fuel cell constructive materials and operating conditions. In this work, a methodology for the characterization of DMFC ... -
Modeling of a Solid Oxide Fuel Cell Fueled by Methane: Analysis of Carbon Deposition
(The American Society of Mechanical Engineers (ASME), 2007)Natural gas appears to be a fuel of great interest for solid oxide fuel cell (SOFC) systems. It mainly consists of methane, which can be converted into hydrogen by direct internal reforming ... -
Mixed-Fuels Fuel Cell Running on Methane-Air Mixture
(The American Society of Mechanical Engineers (ASME), 2006)In order to develop solid oxide fuel cells (SOFCs) running on hydrocarbon fuels, we have focused on a new method of improving electrode performance and reducing carbon deposition by coating ... -
A Technological Solution for an Everywhere Energy Supply With Sun, Hydrogen, and Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2006)The hydrogen economy is still at the beginning, but society, innovation, and the market push inexorably toward hydrogen, inspiring the idea to build an energy-integrated system that can satisfy, ... -
Effects of Inlet Mass Flow Distribution and Magnitude on Reactant Distribution for PEM Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2006)The mass flow distribution and local flow structures that lead to areas of reactant starvation are explored for a small power large active area PEM fuel cell. A numerical model was created ... -
Discussion and Analysis of Flue Gas Utilization in a Phosphoric Acid Fuel Cell Engine During Idle Operation
(The American Society of Mechanical Engineers (ASME), 2006)Fuel cell technology has in recent years won the favor of all major car manufacturers as a likely future replacement of the internal combustion engine. This has been driven by the potential ... -
Dynamic Simulation of a Pressurized 220kW Solid Oxide Fuel-Cell–Gas-Turbine Hybrid System: Modeled Performance Compared to Measured Results
(The American Society of Mechanical Engineers (ASME), 2006)Hybrid fuel-cell–gas-turbine (FC/GT) systems are technologically advanced systems that are promising for electric power generation with ultralow emissions and high efficiency for a large range of ... -
Comprehensive Numerical Modeling and Analysis of a Cell-Based Indirect Internal Reforming Tubular SOFC
(The American Society of Mechanical Engineers (ASME), 2006)A comprehensive numerical model of an indirect internal reforming tubular Solid Oxide Fuel Cell (IIR-T-SOFC) has been developed. Two-dimensional axisymmetry of the velocity, temperature, and mass ... -
Modeling Radiation Heat Transfer With Participating Media in Solid Oxide Fuel Cells
(The American Society of Mechanical Engineers (ASME), 2006)Solid oxide fuel cell (SOFC) technology has been shown to be viable, but its profitability has not yet been seen. To achieve a high net efficiency at a low net cost, a detailed understanding ... -
Changes of Internal Stress in Solid-Oxide Fuel Cell During Red-Ox Cycle Evaluated by In Situ Measurement With Synchrotron Radiation
(The American Society of Mechanical Engineers (ASME), 2006)The internal stress in anode-supported solid-oxide fuel cells (SOFCs) was evaluated by in situ measurement using high-energy x-ray synchrotron radiation. The oxidized cell had a compression of ... -
Multi-Resolution PEM Fuel Cell Model Validation and Accuracy Analysis
(The American Society of Mechanical Engineers (ASME), 2006)A multi-resolution simulation method was developed for the polymer electrolyte membrane (PEM) fuel cell simulation: a full 3D model was employed for the membrane and diffusion layer; a 1D+2D ... -
Effect of Various Electrolyte Compositions on the NiO Degradation in Molten Carbonates
(The American Society of Mechanical Engineers (ASME), 2006)In the present paper we report the NiO solubility in a variety of alkali carbonate compositions in the presence of MgO, CaCO3, BaCO3, and La2O3 additions under different conditions of gas ... -
Dynamic Characteristics of a Direct Methanol Fuel Cell
(The American Society of Mechanical Engineers (ASME), 2006)The detailed dynamic characteristics of direct methanol fuel cells need to be known if they are used for transportable power sources. The dynamic response of a direct methanol fuel cell to ... -
Design and Performance Analysis of Innovative Bipolar Direct Methanol Fuel Cell Stacks with 2D Planar Configuration
(The American Society of Mechanical Engineers (ASME), 2006)In this study, an innovative planar stack design employing graphite plate with bipolar structure on the same side to replace current stainless steel is investigated. The design, fabrication, and ... -
Semiempirical Model for Determining PEM Electrolyzer Stack Characteristics
(The American Society of Mechanical Engineers (ASME), 2006)A semiempirical equation was used to represent the performance characteristics of a 20-cell proton exchange membrane electrolyzer stack. The coefficients of the equation are the exchange current ... -
Optical Measurement Technique of Water Contents in Polymer Membrane for PEFCs
(The American Society of Mechanical Engineers (ASME), 2006)The feasibility of an optical technique is examined for the measurement of the membrane water content in polymer electrolyte fuel cells (PEFCs). Transmission of the infrared light of 1.92 μm ... -
Hydrogen Production Performance of a 10-Cell Planar Solid-Oxide Electrolysis Stack
(The American Society of Mechanical Engineers (ASME), 2006)An experimental study is under way to assess the performance of solid-oxide cells operating in the steam electrolysis mode for hydrogen production over a temperature range of 800–900°C. ...